el_baro's profile - activity

You should ask something more specific. Anyway I think detecting white blobs and counting it is a non-sense approach. i think it could be better to detect the areas with characters and classify them in someway (SVM, OCR, HAAR classifiers etc.).

Detecting edges is a "simple" task until you should have to make a "real" product for market.

The biggest problem in edge detection is pre-processing the image to make the edge detection reliable and fast. In the clip you link us, even if the egde detection is "in the wild" (no pre-model are loaded since the kids can put all the object he wants on the paper), it looks an "easy" situation because the background is uniform and the environment light is good. So i think you can use something like CLAHE to improve the contrast of the image and then try to use CANNY detector to detect edges. I'm pretty confident there's no "NASA-algorithm" in the clip you link, you'll be able do it with opencv.

Hello i'm trying to build opencv 3.0 with Matlab support but I get always "NOT WORKING" warning message.

My config is: - opencv 3.0 alpha release - Matlab 2014a - Visual Studio 2012. - Cmake 2.8 (or the 3.0.2 version) - List item

What's wrong with my configuration?

Regards, ElBaro.

Do you ever tried to re-build the OpenCV solution (w/ matlab binding) after packaging it w/ cmake 2.8?

I'm trying to build 3.0 w/ matlab bindings but it doesn't work. It's not clear to me if it is available as written on the official website. Let me try again

Please use opencv 3.0 in dev with matlab option | https://github.com/Itseez/opencv

Note: since this release is in dev, lot of things are not still properly working concerning with matlab options.

For a deeper focus on the question. SoftCascade patent by adobe: http://www.google.com/patents/US7634142

Edit: Can I use a softcascade xml generated by myself in a commercial product?

Dear Opencv, softcascade looks very promising to improve the obj train/detection paradigm in computer vision.

I noticed softcascade algorithm is patented, can you explain which are the limitations to a commercial usage of an opencv-trained classifier by softcascade tool?

Regards, El baro!